Keep a few things in mind though. The LFS is most likely not going to have any guarantee let alone a 2week guarantee. Also, LA/DD will refund your money not just give you store credit. Shipping is free if you spend over the $150 mark. DD is your best bet but I haven't seen many fireball angels for sale on DD for a while and I check every night. I have bought one from DD in the past and it was perfect.
I want to support my local guy, but he just can't compete from a terms stand point. Also, if the fish dies, LA won't give you any guff about it. They just refund your money. Furthermore, I feel bad taking a dead fish back to my LFS because he is a small guy and can be hurt, where as LA is a big Petco business and I don't feel bad at all triggering the guarantee. Most of everything I've ever bought from DD lives anyway. Orders direct from LA are about 50% mortality rate. DD is almost a sure thing. They are conditioned and have gone through a profilactic treatment process.
Buy from LA/DD with confidence. I buy from them a lot since my local guy just doesn't have any of the selection they do.